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Adam Allington

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Everything posted by Adam Allington

  1. Thinking about it this way may help your head conceptualize it. The point of rating a cine cam lower in iso is to be able to expose low key stuff to your desired look on your monitor the day of on set, and to make post’s life easier by giving them a file that resembles your intention. Whether you shoot at 800 or 400 iso, you want to create an image in your monitor that resembles your finished goal. Say that your shadows, skin tones, etc are all where you want them at t/4 @iso 800. If you lower the iso to 400, you now need to be at t2.8 to get your image to match the iso 800 one. They are the same look, but since you need double the light for iso 400, you get a stop better noise. Iso 200 would give you two stop cleaner shadows and need a t2 to look the same. Your highlights will clip the same amount of stops sooner, but usually that isn’t as important for those types of underexposed scenes. you can do the same thing by creating a lut that is underexposed by a stop, and keeping the camera at iso 800. You’ll still need to open your aperture or add twice as much light to make the image match the standard lut. The downside of doing this method is it can leave interpretation up to the color grader, even if you send the lut as a reference. It’s also more work than doing it in camera IMO, and when shooting pro res there may be a different dynamic range response as opposed to a raw file that can be edited in metadata. Otherwise you would get the same situation. Cleaner shadows, but highlights clip faster.
  2. The bit about the sigma glass is interesting to me. A friend of mine shoots a lot of still film and says he thinks that the 50mm sigma art he owns looks better on film, and his vintage lenses look best on digital. Which makes sense because the modern sharper glass helps being more out of the softer film medium and vice versa. I’ll have to tell him about this!
  3. Hey everyone! I’m an aspiring cinematographer who LOVES working with saturated neon type colors think Benoit debie in Spring Breakers, Cronenweth’s work on Bladerunner, etc. Currently I have an led daylight kit (1x aputure 300d, 2x 120dii), and some tungsten fresnels from mole Richardson and arri (a 2k, three 1k’s, a 650, 350, and 150). I own a lot of random party and corrective gels for them, and don’t have any experience working with rgb fixtures like tubes or panels yet. I often find myself doubling or tripling up gels to get the colors as intense as I want, and have had problems getting decent exposures at that point on my ursa mini pro g2 @ iso 800/f 2.8. My two widest lenses are 18mm contax which is f4, and 21mm ze zeiss at 2.8. Certain locations I’ve lit over the past year require me to go this wide for my masters, as they are often small spaces on location where I’m already backed into a wall to get my desired framing, or id just use my 35mm 1.4. I’m usually under exposing to get the colors to pop, which looks pretty horrible if I go above base iso. ive been wondering if I’m better off investing in bigger hot lights like a small HMI (think 1.2k fresnel or an m18) and using gels as my jobs grow, or going down the dedicated rgbww soft panel or tube route like a skypanel, quasars, or the new aputure nova panel. I never see photo metrics for the rgb side of the fixtures, though I know they obviously take a huge hit to brightness over being used in kelvin mode. I know there are implications to workflow, and color rendition when using rgb vs gels as well. I’d like to consider those factors as well as pure output. I like the idea of having a light that’s soft right out of the box, and also like the idea of having more firepower of a PAR/fresnel when I’m not gelling too. Fortunately these decisions are pretty far off, as I don’t have much work during pandemic, but it’s something I’d like to educate myself on so when I’m ready I know I make the right choices. If you have any tips for the best path to go down, or anyways to get more out of what I have currently, I’m all ears. I’ve learned so much about the craft from lurking around here the past few years, and am grateful for all the help so many offer on here!
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